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Key points and composition of mould manufacturing to avoid deformation Dec 07, 2017

In the manufacture of the mold, the deformation of the mold is often encountered, and the following points are introduced.

(1) the thickness of the products is as uniform as possible.

(2) the design of the cooling system to make the mold cavity uniform temperature of each part, gating system to make the material flow symmetric flow direction, avoid shrinkage caused by different warp, the shunt, the sprue is difficult to forming part of the appropriate bold, try to eliminate the cavity density difference, pressure difference, temperature difference.

(3) the transition area and corner of the thin and thick mould parts should be smooth enough to have good demoulding property, such as increasing the ejection allowance, improving the polishing of the die surface, and balancing the ejection system.

(4) the exhaust should be good.

(5) adjust the wall thickness of the workpiece to make up for the deformation, or increase the reinforcement to enhance the anti warping ability of the parts.

(6) the strength of the material used in the mold of the mould factory is insufficient

The composition of die analytical mold

At present, the structure of the mold will vary according to the type and composition of the mold, and there are two major categories: the configuration structure and the reverse configuration. The former is the most commonly used structure, the latter is mainly used to extend the forming die or to match the special mold.

(1) the digitalization analysis and Simulation of the mold. According to the forming process conditions, the structural analysis, thermal analysis, fatigue analysis and movement analysis of the die parts are carried out.

(2) simulation of product forming process, injection molding and stamping forming;

(3) customizing the design standard parts and standard design process suitable for this plastic mold;

(4) mould production management.

(5) digital drawing, the 3D product and mould model are converted into two-dimensional engineering drawings used in conventional processing.

(6) the digital design of the mold, according to the product model and the design intention, the plastic mold to establish the related mold 3D solid model.